For ultimate corrosion resistance and outstanding exterior durability nystrom provides powder coat finish.
Roof hatch structure.
Roof hatches known sometimes as roof scuttles are designed to allow workers safe access to roof areas for hvac equipment maintenance roof renovations etc.
A variety of special sizes are also available to provide an accessible way to install or remove large pieces of equipment from a building.
They are present on most nonresidential buildings.
The standard roof hatch comes with cap flashing and 1 thick rigid fiber board insulation along the curb of the hatch.
Roof hatches normally open from the inside and have a ladder that rises up within the hatch from the last floor of the structure.
For this installation the customer removed the curb insulation from the hatch and bolted the hatch down to the roof.
If movement of bulky materials through the hatch is anticipated double leaf hatches with openings up to 66 sq.
Recent changes to the international building code require 16 sq.
Thus the users cannot be injured due to the slamming down of the hatch and roof hatch is also safer than the easily breakable ladders.
Or larger are available.
The hatch features a door seal base insu.
While they provide great convenience to building personnel unattended roof hatches left in the open position can be dangerous.
Recommended minimum sizes for various types of roof access are shown above.
Nystrom roof hatches provide safe and convenient access to commercial building roof areas using interior ladders and stairs.
Ft openings as the standard for various structures.
Roof hatches bilco roof hatches provide safe and convenient access to roof areas by means of an interior ladder ship stair or service stair.
Roof hatches are used for servicing of mechanical units located on the roof and for normal maintenance requirements.